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5a3s

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Revision as of 04:37, 25 May 2023

Crystal structure of the (SR) Calcium ATPase E2-vanadate complex bound to thapsigargin and TNP-ATP

Structural highlights

5a3s is a 2 chain structure with sequence from Oryctolagus cuniculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , , ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

AT2A1_RABIT This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction (By similarity).

Publication Abstract from PubMed

Vanadate is the hallmark inhibitor of the P-type ATPase family; however, structural details of its inhibitory mechanism have remained unresolved. We have determined the crystal structure of sarcoplasmic reticulum Ca(2+)-ATPase with bound vanadate in the absence of Ca(2+). Vanadate is bound at the catalytic site as a planar VO3(-) in complex with water and Mg(2+) in a dephosphorylation transition-state-like conformation. Validating bound VO3(-) by anomalous difference Fourier maps using long-wavelength data we also identify a hitherto undescribed Cl(-) site near the dephosphorylation site. Crystallization was facilitated by trinitrophenyl (TNP)-derivatized nucleotides that bind with the TNP moiety occupying the binding pocket that normally accommodates the adenine of ATP, rationalizing their remarkably high affinity for E2P-like conformations of the Ca(2+)-ATPase. A comparison of the configurations of bound nucleotide analogs in the E2.VO3(-) structure with that in E2.BeF3(-) (E2P ground state analog) reveals multiple binding modes to the Ca(2+)-ATPase.

Crystal Structure of the Vanadate-Inhibited Ca(2+)-ATPase.,Clausen JD, Bublitz M, Arnou B, Olesen C, Andersen JP, Moller JV, Nissen P Structure. 2016 Apr 5;24(4):617-23. doi: 10.1016/j.str.2016.02.018. PMID:27050689^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Clausen JD, Bublitz M, Arnou B, Olesen C, Andersen JP, Moller JV, Nissen P. Crystal Structure of the Vanadate-Inhibited Ca(2+)-ATPase. Structure. 2016 Apr 5;24(4):617-23. doi: 10.1016/j.str.2016.02.018. PMID:27050689 doi:http://dx.doi.org/10.1016/j.str.2016.02.018

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5a3s"

@@ Line 3: / Line 3: @@
 <StructureSection load='5a3s' size='340' side='right'caption='[[5a3s]], [[Resolution|resolution]] 3.30&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5a3s]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5A3S OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5A3S FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5a3s]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5A3S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5A3S FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=128:SPIRO(2,4,6-TRINITROBENZENE[1,2A]-2O,3O-METHYLENE-ADENINE-TRIPHOSPHATE'>128</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=TG1:OCTANOIC+ACID+[3S-[3ALPHA,+3ABETA,+4ALPHA,+6BETA,+6ABETA,+7BETA,+8ALPHA(Z),+9BALPHA]]-6-(ACETYLOXY)-2,3,-3A,4,5,6,6A,7,8,9B-DECAHYDRO-3,3A-DIHYDROXY-3,6,9-TRIMETHYL-8-[(2-METHYL-1-OXO-2-BUTENYL)OXY]-2-OXO-4-(1-OXOBUTOXY)-AZULENO[4,5-B]FURAN-7-YL+ESTER'>TG1</scene>, <scene name='pdbligand=VN4:OXIDO(DIOXO)VANADIUM'>VN4</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=128:SPIRO(2,4,6-TRINITROBENZENE[1,2A]-2O,3O-METHYLENE-ADENINE-TRIPHOSPHATE'>128</scene>, <scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=TG1:OCTANOIC+ACID+[3S-[3ALPHA,+3ABETA,+4ALPHA,+6BETA,+6ABETA,+7BETA,+8ALPHA(Z),+9BALPHA]]-6-(ACETYLOXY)-2,3,-3A,4,5,6,6A,7,8,9B-DECAHYDRO-3,3A-DIHYDROXY-3,6,9-TRIMETHYL-8-[(2-METHYL-1-OXO-2-BUTENYL)OX+Y]-2-OXO-4-(1-OXOBUTOXY)-AZULENO[4,5-B]FURAN-7-YL+ESTER'>TG1</scene>, <scene name='pdbligand=VN4:OXIDO(DIOXO)VANADIUM'>VN4</scene></td></tr>
-<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5a3s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5a3s OCA], [https://pdbe.org/5a3s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5a3s RCSB], [https://www.ebi.ac.uk/pdbsum/5a3s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5a3s ProSAT]</span></td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5a3q|5a3q]], [[5a3r|5a3r]]</td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Calcium-transporting_ATPase Calcium-transporting ATPase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.3.8 3.6.3.8] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5a3s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5a3s OCA], [http://pdbe.org/5a3s PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5a3s RCSB], [http://www.ebi.ac.uk/pdbsum/5a3s PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5a3s ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/AT2A1_RABIT AT2A1_RABIT]] This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction (By similarity).
+[https://www.uniprot.org/uniprot/AT2A1_RABIT AT2A1_RABIT] This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction (By similarity).
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 28: / Line 25: @@
 __TOC__
 </StructureSection>
-[[Category: Calcium-transporting ATPase]]
 [[Category: Large Structures]]
 [[Category: Oryctolagus cuniculus]]
-[[Category: Andersen, J P]]
+[[Category: Andersen JP]]
-[[Category: Arnou, B]]
+[[Category: Arnou B]]
-[[Category: Bublitz, M]]
+[[Category: Bublitz M]]
-[[Category: Clausen, J D]]
+[[Category: Clausen JD]]
-[[Category: Moller, J V]]
+[[Category: Moller JV]]
-[[Category: Nissen, P]]
+[[Category: Nissen P]]
-[[Category: Olesen, C]]
+[[Category: Olesen C]]
-[[Category: Beryllium fluoride]]
-[[Category: Calcium transport]]
-[[Category: Hydrolase]]
-[[Category: Inhibition]]
-[[Category: P-type atpase]]
-[[Category: Serca]]
-[[Category: Tnp-atp]]
-[[Category: Transition state]]
-[[Category: Trinitrophenyl-nucleotide analoge]]

5a3s

From Proteopedia

Revision as of 04:37, 25 May 2023

Crystal structure of the (SR) Calcium ATPase E2-vanadate complex bound to thapsigargin and TNP-ATP

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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